Ready or eager to fight; having a quarrelsome or confrontational nature.
From Latin 'combattere' meaning 'to fight together,' from 'com-' (with) and 'battere' (to beat). The suffix '-ive' makes it an adjective describing someone inclined toward combat.
A 'combative' person is literally someone ready to fight together with you ('com' = together), but it describes someone so argumentative they want to battle everyone about everything!
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